Coil-forming apparatus



0. KUBASTA. COIL FORMING APPARATUS.

APPLICATION FILED JULY 7' I919.

Patented Mar. 23,1920.

Mom,

UNITED STATES PATENT OFFICE.

CHARLES KUIBASTA, OF DETROIT, MICHIGAN, ASSIGNOR OF ONE-HALF TO BRUCE W.PALMER, OF DETROIT, MICHIGAN.

COIL-FORMING- APPARATUS.

This invention relates to coil forming apparatus and more particularlyto apparatus for winding and forming coils for armatures and stators ofdynainos and electrie motors The primary object of the invention is toprovide a coil forming apparatus capable of forming the coils directlyinto the shape desired to fit onto the prepared cores of the armaturesor stators.

A further object is to provide a coil forming apparatus readilyadjustable to vary the length, width and thickness of the coil and tochange the shape of the coil as desired, wherein the parts may be firmlysecured in adjusted position to accurately maintain the desired shapeand size.

Another object is to provide a coil forming apparatus of few and easilyconstructed parts that will be suiiicient in operation and inexpensiveto manufacture. so

With the above and other objects in view which will readily appear asthe invention is better understood, my invention consists in the novelconstruction, combination and arrangement of parts-to be hereinaftermore fully described and particularly pointed out in the appendedblaims.

Reference is to be had to the accompany ing drawings illustrating apreferred embodiment of my invention and wherein similar referencenumerals designate parts throughout the several views.

In the drawings j Figure 1 is a perspective view of my cell formingapparatus showing the position the wires assume during the formation ofthe coil;

Fig. 2 is a detail view of one of the longitudinal guide frames;

Fig. 3 is a detail side elevation of one of the lateral guide frames orwings;

Fig. 4 is a detail section of the lateral guide frame showing the flangewhich engages the bed of the apparatus, and

Fig. 5 is a perspective view of the coil Specification of LettersPatent.

Application filed July 7, 1919.

Patented Mar. 23, 1920.

Serial no. 309,233.

wound, with the guide frames in the position shown in Fig. 1.

In the drawings the nume 'al 5 designates a central member or bed whichis preferably formed I-section in cross-section to give it rigidity andstrength and at the same time provide upper and lower flanges on whichmay be adjiistably secured the lateral guide frames or wings 6. Thelateral guide frames are preferably formed substantially as shown, withan inner portion adapted to slide upon the flanges of the central memberor bed 5, to which it may be secured in any adjusted position by thumbscrews or other clamps 6?. The wings 6 are shown with spacedoutwardlyextending walls 7 between which are mounted the U-shaped guides8 through which the lateral portions of the wire coils are adapted topass (see Figs. 1 and 3). In one or both of the walls 7 is threaded anadjusting bolt 9 whereby the U-shaped guide 8 may be firmly clamped inany desired position between the two walls 7. As the entire wing 6 isadjustable on the bed 5 and the U-shaped guide 8 is also adjustablebetween the walls 7 of the wings, it will be readily apparent that anydesired lateral adjustment may be secured on my improved coil formingapparatus.

Firmlysecured in the central bed 5 sub stantially centrally thereof arespaced par allel bars 10 extending from the central bed 5 atsubstantiallv ri ht angles. On these o b is parallel bars 10 areadjustably mounted the longitudinally guide frames 11, the positions ofwhich may be adjusted at will to var) the distance between the innerportions of the coil in its longitudinal direction. These guide framesare preferably formed substantially as shown in Figs. 1 and 2, and haveapertured side pieces 11 adapted to slide over the parallel bars 10 andan intermediate flat spacing member 12 on which are slidably mounted apair of auxiliary guides 18 which may be adjustably secured at will atany position between the slide members 11 With this construction it isapparent that the distances between the ends of the coil may be variedby sliding the guide frames 11 along the parallel bars and securing themin adjusted position by the thumb screws or clamps 1-1. while theposition for the turn or bend 'in the wire coils is regulated by theadjustment of the auxil heift hand U-sh'a-ped guide member.

iary guides 13 which may be moved, as desired, between the aperturedside members 11 These auxiliary guide frames 13 are also secured inadjusted position by thumb screws 15 or other forms of clamps, asdesired.

From the above it will be seen that my coil forming apparatusprimarilyconsists of a fixed central portion constructed somewhat in the shape ofa cross,-on each of the four arms of which is mounted an adjustablemember, the positions of which may be adjusted at will to vary thedimensions of the *coils-in any direction.

In Fig. 1 I have secured the adjustable members in positions to form awire-coil of substantially the shape shown in Fig. 5, whi'c'h'shape-isparticularly adaptable for use with the ordinary cores used in armaturesandstatorsbf dynamos and electric motors now on the market. To securethis shape the terminal of the wire is placed substantially as shown'ata, and thence passes over the upper-surface of the spacing bar 12 of'the right-hand side longitudinal guide frame 'l l-an'd is then bent topass below the same spacing bar 12 and between the walls of theright-hand U-shaped guide 8, cont1numg below the spacing-bar 12 of theleft-hand lon- "gitudinalguide frame 11, and then bent upwardly andoverthe same spacing bar 12, whence it passes between the walls of the Thiscircuit is repeated as often as desired to form the-coil. By adjustingthepositions of the lateral wings 6 or the longitudinal guide frame 11,varied shapes and configurations of coils can -be formed.

Toenable the distances betweenthe wings 6 to bereadily determined andthe wings positioned at any desired distance from the center, Ihaveprovided a graduated scale 16 omthe flanges of the central bed 5.Similar 'markings-may be placed on the parallel bars .10 todetermine'thespacing of the longitudinal guide frames 11 if desired.

While it will be apparent that the illustrated embodiment of myinvention herein disclosed is "well calculated to adequately fulfilthe'objects primarily stated, it is to be understood that the inventionis susceptible to variation, modification and change without departingfrom the spirit and scope of ithe inventionas set forth in'the subjoinedclaims.

Having described my invention, I claim:

1. Aicoil forming apparatus comprising a central bed substantially ofI-shaped cross section, a pair of guide frames adjustably mountedthereon, means for securing said guide frames to the bed in any adjustedposition, a pair of spaced members secured to the central bed andextending on each side thereof, and guide frames adjustably mounted onsaid spaced members,

2. A coil forming apparatus comprising a central bed substantially ofI-shaped cross section, a pair of guide frames slidably mounted thereon,'means for securing said guide frames to the bed in any adjustedposition, a pair of spaced members secured to the centralbed andextending on each side thereof, and guide frames slidably mounted onsaid spaced members.

3. A coil forming apparatus comprising a central bedylateral guideframes mounted to slide thereon, each of said lateral frames havingspaced walls, auxiliary guide frames adjustably mounted between saidwalls, spaced parallel bars extending from the central bed in oppositedirections, and longitudinal guide frames adjustably mounted on saidparallel bars.

4. A-coil forming apparatus comprising a central bed, lateral guideframes mounted to slide thereon, each of said lateral frameshavingspaced walls, auxiliary guide frames adjustably mounted betweensaid walls, means for securing the adjustable guide frames in anyposition intermediate said walls, spaced parallel bars extending fromthe central bed in opposite directions, and longitudinal guide framesadjustably mounted 011 said parallel bars.

5. A coil forming apparatus comprising a 'central bed, lateral guideframes adjustably mounted thereon, a pair of spaced parallel barsextending from the central portion of the bed in opposite directions, apair of 1011 .gitudinal guide frames adjustably mounted on said parallelbars, and auxiliary guides adjustably mounted on each of thelongitudinal guide frames.

6. A 'coil forming apparatus comprising a central bed, lateral .guideframes adjustably mounted thereon, a pair ofspaced parallel barsextending from the central portion of the bed in opposite directions, apair of 1011 gitudinalguide frames adjustably mounted on said parallelbars, auxiliary guides mounted to slide on each of the longitudinalguide frames, and means for securing each of the auxiliary guides in anyadjusted posi tion.

CHARLES KUBASTA.

Witnesses JOHN C. ALEXANDER, MARY KENNEDY.

